National Occupational Exposure Survey
(1981 - 1983)

Estimated Numbers of Employees Potentially Exposed to Specific Agents by Occupation*

Agent Name CESIUM, ISOTOPE OF MASS 137
CAS # 10045-97-3
RTECS #
Agent Code X3111

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
036 INSPECTORS AND COMPLIANCE OFFICERS, EXC. CONSTRUCTION 41  
084 PHYSICIANS 14 14
105 THERAPISTS, N.E.C. 225 71
203 CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS 317 189
206 RADIOLOGIC TECHNICIANS 443 202
216 ENGINEERING TECHNICIANS, N.E.C. 954 21
224 CHEMICAL TECHNICIANS 1,445 230
453 JANITORS AND CLEANERS 448  
544 MILLWRIGHTS 45  
599 CONSTRUCTION TRADES, N.E.C. 2,072  
614 DRILLERS, OIL WELL 1,873  
719 MOLDING AND CASTING MACHINE OPERATORS 134  
735 PHOTOENGRAVERS AND LITHOGRAPHERS 1,026 91
756 MIXING AND BLENDING MACHINE OPERATORS 134 45
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 543 77
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 236  
785 ASSEMBLERS 792 354
804 TRUCK DRIVERS, HEAVY 1,727  
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 205  
TOTAL 12,675 1,293

*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (2) When using the estimates, standard errors associated with estimates should be considered. (3) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.

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